Rank 2
I have a chart that uses a linqDataSource.
Some of the incoming data has no values.
I need to hide the ColumnSeries if that is true.. Value == 0 ? visible = false : visible = true;
Can someone point me to an article or such?
<telerik:ColumnSeries DataFieldY="Auctioned" Name="Auctioned">
<Appearance>
<FillStyle BackgroundColor="#8dd3c7"></FillStyle>
</Appearance>
<LabelsAppearance Visible="False" Position="Center">
</LabelsAppearance>
<TooltipsAppearance Visible="True">
<ClientTemplate>
Auctioned<br/>#=value#
</ClientTemplate>
</TooltipsAppearance>
</telerik:ColumnSeries>
4 Answers, 1 is accepted
Rank 2
Something like this would be cool...
<telerik:ColumnSeries DataFieldY="Auctioned" Name="Auctioned" Visible="#=value === 0 ?false:true #">
Hi,
The easiest way to do this would perhaps be to examine the data on the server (e.g., loop through the list of custom data and check the field) and use the VIsible property according to your custom logic.
The last post's suggestion cannot be implemented because:
- this would be a client template inside a server property
- a series has more than one item, i.e., more than one associated value, so such a simple rule cannot be used for the entire series
Regards,
Telerik
Rank 2
I like the idea of "The easiest way to do this would perhaps be to examine the data on the server (e.g., loop through the list of custom data and check the field) and use the VIsible property according to your custom logic." but where in the code do I hook into the chart building process to set the value visible to false? CHART INIT, PRERENDER ...etc... ???
Hello,
The data source events should let you do that: http://demos.telerik.com/aspnet-ajax/htmlchart/examples/databinding/linqdatasource/defaultcs.aspx.
Or, you can simply get the List<> yourself and bind it "manually" to the chart: http://demos.telerik.com/aspnet-ajax/htmlchart/examples/databinding/bindtolist/defaultcs.aspx.
Regards,
Telerik